INDUSTRIAL STRENGTH || Made of high quality, heavy duty, Borosilicate 3.3 glass. Excellent strength against breakage. Designed for use in professional laboratories, but is ideal for classroom, garage and home use | 1000ML CAPACITY || Beaker has a 1000ml capacity and features white printed graduation lines every 50ml | ASTM || Beaker features dual scale graduations, as per ASTM-E960 | SUPERIOR HEAT & CHEMICAL DURABILITY || Microwavable and autoclavable, with superior chemical durability. Low temperature gradient- can withstand high temperatures & thermal shocks | MANUFACTURED BY EISCO LABS || Eisco Labs proudly manufactures its own products using state-of-the-art equipment, and following the highest standards of quality control. Each product is carefully designed by a team of laboratory professionals and experienced engineers with quality and durability in mind